The Capital Asset Pricing Theory is hotly discussed with the development of China's capital market. For the study range in 2007, 65 stocks were chosen with certain rules to do an empirical research of the Capital Asset Pricing Model (CAPM) applicability in Chinese stock markets. The study found that, from the perspectives of constant and beta coefficient significant as well as the explanatory power regression equation, CAPM is applied to the Chinese stock markets with China's high stock market in 2007.